Since mkinitcpio is already ran on the installation of the linux
package with pacstrap, and since we don't change any config settings,
recreating the initramfs is not necessary.
This not only fixes the issue where set -x would cause the read
line to be altered, but also separates user input from what the
install scripts actually do.
Instead of running two systemctl commands (start and enable),
one can simply use `systemctl enable --now` instead.
The grub command was removed since I never used it and haven't
found a need to do so.
